Sail and Snorkel the Medes: Boat Trip to Roca Foradada from L'Estartit

On the Costa Brava off northeastern Spain, the Parc Natural del Montgrí, les Illes Medes i el Baix Ter frames a wedge of limestone cliffs, hidden coves and the tiny, protected Illes Medes. From the waterfront town of L'Estartit, Eco Snorkel + Paseo en Barco (ISLAS MEDES Y COSTA MONTGRÍ HASTA LA FORADADA) launches a three-hour cruise that threads sea caves, headlands and the emblematic Roca Foradada before dropping anchor for a guided snorkel among dense Posidonia seagrass meadows. Onboard, a local guide points out geological scars in the Montgrí massif: strata of pale limestone cut by vertical joints, sculpted over millennia into steep cliffs and little bays. The Foradada—an arching sea rock known locally as Roca Foradada—marks a dramatic turn in the coastline where waves have punched a hole through the rock, framing views back toward L'Estartit and the mainland. Beyond the arch, the Medes cluster rises from the deep: small volcanic and sedimentary outcrops that host a rich underwater world. Snorkeling here is different from an ordinary beach swim. The islands are a protected marine reserve, and the clear water, healthy Posidonia beds and rocky reefs support dense schools of fish, edible crabs, cuttlefish and occasional groupers. A certified park guide accompanies swimmers, sharing identification tips for native species and demonstrating low-impact snorkeling techniques. The focus is as much on education as on spectacle—learn to read the reef, respect nursery areas, and recognize signs of recovery in previously overfished zones. This is a short trip—about three hours—but it feels complete: boat time to take in the coastline, a stop to float above seagrass carpets, and a slow return with the coast on the starboard. It suits travelers who want a compact marine immersion without committing to a full-day charter. Families that can swim and confident novice snorkelers will find the pace relaxed, while more experienced underwater photographers will appreciate the light and biodiversity. Practical notes: departures leave from L'Estartit harbor; bring reef-safe sunscreen, a towel and a wind layer. Respect the park rules—no collecting, no anchoring on Posidonia, and keep distance from wildlife. The operator's guided format makes this a strong choice for first-time snorkelers curious about Mediterranean marine conservation. Whether you come for the arching silhouette of the Foradada, the vertical cliffs of Montgrí, or the dense life under the waves, this combined boat and snorkel outing is a vivid, efficient way to touch the wild sea of the Costa Brava. Book with operators who prioritize small groups and certified guides, and plan for light wind that can chop surface conditions—calmer mornings typically offer the clearest underwater visibility; late afternoon trips often return with golden light on the Foradada and dramatic shadow across Montgrí's cliffs and skies.